FINALS
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FINALS - Marcador
FINALS - Detalles
Niveles:
Preguntas:
40 preguntas
| 🇬🇧 | 🇬🇧 |
| Electronegativity _______________ from left to right within a period and ________ from top to bottom within a group | Increases, decreases |
| Atomic radius generally increases as we move _______________ | Down a group and from right to left across a period |
| The order in which elements are arranged in a period of the periodic table depends upon | Their increasing atomic number |
| Group where many elements are man-made and named after scientist | Rare Earth Metals (Lanthanides and Actinides) |
| Who created the periodic table and how it is organized? | Dmitri Mendeleev; atomic weight |
| What is group or family? | Columns in the periodic table, stand for the # of valence electrons in the atomic structure |
| Electronegativity is a concept that is useful along with other concepts in | Predicting the polarity of a bond |
| The ability of an atom in a molecule to attract electrons is best quantified by the ______________ | Electronegativity |
| What is period? | Rows in the periodic table; stand for the # of electron shells in the atomic structure |
| SeCl6 + O2 | SeO2 + 3Cl2 |
| What type of chemical bonding will be characterized by the N and Cl? | Polar covalent bond |
| P4 + 3 O2 | 2P2O3 |
| MgCl2 + Li2(CO3) | MgCO3 + O2 |
| 2 NO2 + O2 | 2O2 t N2 |
| What kind of reaction is it? 2KClO3 -- 2KCl + 3O2 | Decomposition |
| What is the correct name for the compound CoCl2 ? | Cobalt(II) chloride |
| The elements in group 1 have similar properties because | They all have a single electron in their outer shell |
| Molecular compounds are usually _________ | Composed of two or more nonmetallic elements |
| Which of the following does not contain ionic bonds? | Sulfur dioxide |
| What is the correct name for Sn3 (PO4)2 ? | Tin(II) phosphate |
| When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a __________ | Roman numeral following the name |
| Based on the electronegativities K= 0.8, H= 2.8, which of the following statement is true | H2 is a nonpolar covalent molecule and HBr is a polar covalent molecule |
| Chemical equations must be balanced to satisfy the __________ | Law of conservation of mass |